69119-43-3

Upstream product

• 154-23-4 catechin 
• 51079-25-5 (2R,3S)-(+)-catechin 3',4',5,7-tetramethyl ether 
• 490-46-0 (2R,3R)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-1[2H]-benzopyran-3,5,7-triol 
• 88038-02-2 6-bromo-(-)-epicatechin 
• 108-24-7 acetic anhydride 
• 88037-98-3 6-bromo-3',4',5,7-tetra-O-methyl-(-)-epicatechin 
• 88488-99-7 6-bromo-(+)-catechin 
• 78376-73-5 6,8-dibromo-3',4',5,7-tetra-O-methyl-(+)-catechin 
• 69119-42-2 3-O-benzyl-6,8-dibromo-3',4',5,7-tetra-O-methyl-(+)-catechin 
• 69119-40-0 6-bromo-3',4',5,7-tetra-O-methyl-(+)-catechin 
• 78393-95-0 6-bromo-3',4',5,7-tetra-O-methyl-(+)-catechin 

Relevant academic research and scientific papers

Synthesis of Condensed Tannins. Part 12. Direct Access to - and -all-2,3-cis-Procyanidin Derivatives from (-)-Epicatechin: Assessment of Bonding Positions in Oligomeric Analogues from Crataegus oxyacantha L.

Synthesis of methyl ester acetates of - and -all-2,3-cis-procyanidin biflavanoids is effected by oxidative functionalization of (-)-epicatechin tetramethyl ester with lead tetra-acetate, and condensation of the resultant 2,3-cis-flavan-3,4-diol

Synthesis of Condensed Tannins. Part 3. Chemical Shifts for Determining the 6- and 8-Bonding Positions of 'Terminal' (+)-Catechin Units

Pairs of 6- and 8-functionalised (Br, OH, OAc, CO2Me, and CH2Me groups) 3',4',5,7-tetra-O-methyl-(+)-catechins available through selective bromination and debromination reactions and hence via lithio-analogues, provide diagnostic chemical shifts of their